Noob alert. Basic question #1....

[Ocracoke]

Hey there, welcome to the forum!

For a basic featherweight, either voltage is good at this stage (though more is better) and I guess either battery is also fine for this application though 800mAh is fairly small, they can be changed later on if you decide to go further into this and into competition - my Featherweight uses 2.1Ah batteries in series and my Beetleweight uses a 1.5Ah battery. I can't say how long the Beetleweight battery lasts in combat but the Featherweight will run 2 matches before needing a charge and that is with it zipping around everywhere.